.book-detail-pro {
    display: grid;
    grid-template-columns: 420px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
    padding: 48px 0 34px;
}

.book-detail-cover-panel,
.book-detail-info-panel,
.review-form-pro,
.review-card-pro {
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(226, 232, 240, 0.94);
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.09);
}

.book-detail-cover-panel {
    position: sticky;
    top: 122px;
    border-radius: 30px;
    padding: 22px;
}

.book-detail-cover-wrap {
    overflow: hidden;
    border-radius: 24px;
    background: linear-gradient(135deg, #082544, #2563eb);
}

.book-detail-cover-img,
.book-detail-cover-placeholder {
    width: 100%;
    aspect-ratio: 3 / 4;
    display: grid;
    place-items: center;
}

.book-detail-cover-img {
    object-fit: cover;
}

.book-detail-cover-placeholder {
    color: #ffffff;
    font-size: 110px;
    font-weight: 900;
}

.book-detail-cover-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 14px;
}

.book-detail-cover-meta div {
    border-radius: 18px;
    padding: 14px;
    background: #f8fafc;
    border: 1px solid #eef2f7;
}

.book-detail-cover-meta span,
.book-detail-meta-card span {
    display: block;
    color: #64748b;
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.book-detail-cover-meta strong,
.book-detail-meta-card strong {
    display: block;
    margin-top: 5px;
    color: #0f172a;
    font-size: 18px;
    font-weight: 900;
}

.book-detail-info-panel {
    border-radius: 30px;
    padding: 34px;
}

.book-detail-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

.book-detail-title {
    margin: 0;
    color: #0f172a;
    font-size: 50px;
    line-height: 1.08;
    font-weight: 900;
}

.book-detail-author {
    margin: 14px 0 26px;
    color: #64748b;
    font-size: 18px;
}

.book-detail-author strong {
    color: #334155;
}

.book-detail-meta-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 28px;
}

.book-detail-meta-card {
    min-height: 94px;
    border-radius: 20px;
    padding: 16px;
    background: #f8fafc;
    border: 1px solid #eef2f7;
}

.book-detail-description {
    padding: 22px;
    border-radius: 22px;
    background: #f8fafc;
    border: 1px solid #eef2f7;
}

.book-detail-description h2 {
    margin: 0 0 10px;
    font-size: 22px;
}

.book-detail-description p {
    margin: 0;
    color: #475569;
    line-height: 1.8;
}

.book-detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.book-detail-actions form {
    display: inline-flex;
}

.book-reviews-pro {
    padding: 24px 0 70px;
}

.review-form-pro {
    border-radius: 28px;
    padding: 26px;
    margin-bottom: 24px;
}

.review-form-pro h3 {
    margin: 0 0 18px;
    font-size: 24px;
}

.review-form-grid {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 18px;
    margin-bottom: 18px;
}

.review-form-grid label {
    display: flex;
    flex-direction: column;
    gap: 9px;
    color: #334155;
    font-weight: 800;
}

.form-select {
    width: 100%;
    border: 1px solid #dbe4ee;
    border-radius: 14px;
    padding: 13px 14px;
    font: inherit;
    background: #ffffff;
}

.reviews-grid-pro {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.review-card-pro {
    border-radius: 24px;
    padding: 22px;
}

.review-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 14px;
}

.review-card-top strong {
    display: block;
    color: #0f172a;
}

.review-card-top span {
    display: block;
    margin-top: 4px;
    color: #64748b;
    font-size: 13px;
}

.review-rating {
    min-width: 74px;
    padding: 7px 10px;
    border-radius: 999px;
    color: #92400e !important;
    background: #fef3c7;
    text-align: center;
    font-weight: 900;
}

.review-card-pro p {
    color: #475569;
    line-height: 1.7;
}

.book-card {
    overflow: hidden;
    border-radius: 22px;
    display: flex;
    flex-direction: column;
    color: inherit;
    background: #ffffff;
    border: 1px solid rgba(226, 232, 240, 0.94);
    box-shadow: 0 16px 38px rgba(15, 23, 42, 0.07);
    transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.book-card:hover {
    color: inherit;
    transform: translateY(-5px);
    box-shadow: 0 26px 60px rgba(15, 23, 42, 0.13);
}

.book-card .cover {
    position: relative;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: linear-gradient(135deg, #082544, #2563eb);
}

.book-card .cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-card .cover-placeholder {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: #ffffff;
    font-size: 58px;
    font-weight: 900;
}

.book-card .cover .badge {
    position: absolute;
    top: 12px;
    left: 12px;
}

.book-card .book-meta {
    padding: 16px;
}

.book-card .book-meta h3 {
    margin: 0;
    color: #0f172a;
    font-size: 17px;
    line-height: 1.3;
    font-weight: 900;
}

.book-card .book-meta p {
    margin: 8px 0 14px;
    color: #64748b;
    font-size: 14px;
}

.book-card .tag {
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.library-shell-pro {
    padding: 38px 0 70px;
}

.library-hero-pro {
    border-radius: 32px;
    padding: 44px;
    margin-bottom: 24px;
    color: #ffffff;
    background:
        radial-gradient(circle at 16% 18%, rgba(255, 255, 255, 0.16), transparent 28%),
        linear-gradient(135deg, #082544 0%, #0b3b6f 48%, #2563eb 100%);
    box-shadow: 0 30px 80px rgba(8, 37, 68, 0.22);
}

.library-hero-pro h1 {
    margin: 0;
    max-width: 760px;
    color: #ffffff;
    font-size: 46px;
    line-height: 1.08;
    font-weight: 900;
}

.library-hero-pro p {
    max-width: 680px;
    margin: 14px 0 0;
    color: rgba(255, 255, 255, 0.82);
    font-size: 17px;
    line-height: 1.7;
}

.library-filters-pro {
    border-radius: 26px;
    padding: 18px;
    margin-bottom: 28px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(226, 232, 240, 0.94);
    box-shadow: 0 18px 44px rgba(15, 23, 42, 0.07);
}

.library-filters-pro form {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: 14px;
    align-items: end;
}

.library-filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.library-filter-group label {
    color: #334155;
    font-size: 13px;
    font-weight: 900;
}

.library-filter-group input,
.library-filter-group select {
    width: 100%;
    min-height: 48px;
    border: 1px solid #dbe4ee;
    border-radius: 14px;
    padding: 0 14px;
    font: inherit;
    background: #ffffff;
}

.library-filter-group input:focus,
.library-filter-group select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.10);
}

.library-results-top {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin: 28px 0 18px;
}

.library-results-top h2 {
    margin: 0;
    color: #0f172a;
    font-size: 26px;
}

.library-results-top p {
    margin: 5px 0 0;
    color: #64748b;
}

.library-grid-pro {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(235px, 1fr));
    gap: 22px;
}

.library-empty-pro {
    min-height: 320px;
    border-radius: 26px;
    display: grid;
    place-items: center;
    align-content: center;
    gap: 12px;
    text-align: center;
    color: #64748b;
    background: #ffffff;
    border: 1px dashed #cbd5e1;
}

.library-empty-pro i {
    color: #2563eb;
    font-size: 38px;
}

.library-empty-pro h3 {
    margin: 0;
    color: #0f172a;
}

.library-pagination-pro {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 14px;
    margin-top: 34px;
}

.library-pagination-pro a,
.library-pagination-pro span {
    min-height: 44px;
    padding: 0 16px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    font-weight: 800;
}

@media (max-width: 980px) {
    .book-detail-pro {
        grid-template-columns: 1fr;
    }

    .book-detail-cover-panel {
        position: static;
        max-width: 460px;
    }

    .book-detail-title {
        font-size: 38px;
    }

    .book-detail-meta-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .review-form-grid,
    .reviews-grid-pro {
        grid-template-columns: 1fr;
    }

    .library-filters-pro form {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .library-filters-pro form {
        grid-template-columns: 1fr;
    }

    .library-hero-pro {
        padding: 28px;
        border-radius: 24px;
    }

    .library-hero-pro h1 {
        font-size: 34px;
    }

    .library-results-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .pdf-toolbar,
    .toolbar-left,
    .toolbar-right,
    .reader-actions {
        width: 100%;
    }

    .toolbar-left,
    .toolbar-right,
    .reader-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .toolbar-right {
        grid-template-columns: 1fr 52px 52px;
    }

    .toolbar-center {
        width: 100%;
        text-align: center;
    }

    .reader-actions .back-btn {
        grid-column: 1 / -1;
    }

    .toolbar-btn,
    .reader-btn {
        justify-content: center;
        min-height: 44px;
    }

    .pdf-viewer-container {
        min-height: 520px;
        padding: 14px;
        border-radius: 20px;
    }
}

@media (max-width: 560px) {
    .book-detail-pro {
        padding-top: 24px;
    }

    .book-detail-info-panel,
    .book-detail-cover-panel,
    .review-form-pro {
        border-radius: 22px;
        padding: 18px;
    }

    .book-detail-title {
        font-size: 30px;
    }

    .book-detail-meta-grid,
    .book-detail-cover-meta {
        grid-template-columns: 1fr;
    }

    .book-detail-actions,
    .book-detail-actions form,
    .book-detail-actions .btn {
        width: 100%;
    }
}